钢桥面板疲劳可靠度有限元分析方法  

Finite Element Analysis Method for Fatigue Reliability of Steel Bridge Deck

作　　者：陈霞 李亚芳 Chen Xia;Li Yafang(Jiangxi Highway Development of Science and Technology Company,Nanchang 330025,China;Jiangxi Communications Investment Group Co.,LTD.,Nanchang 330025,China)

机构地区：[1]江西省天驰高速科技发展有限公司,南昌330025 [2]江西省交通投资集团有限责任公司,南昌330025

出　　处：《黑龙江科学》2023年第22期45-47,共3页Heilongjiang Science

基　　金：江西省交通运输厅科技项目“大件运输车载作用下中小跨径桥梁耐久性能退化规律及通行评估标准研究”(2022H0013)。

摘　　要：指出了钢桥面板产生疲劳问题的原因,确定了顶板与纵向加劲肋连接处、横隔板与纵向加劲肋连接处是疲劳问题发生几率最大的部位。介绍了S-N曲线疲劳可靠度分析法及疲劳极限状态方程,提出利用S-N曲线法实现钢桥面板疲劳可靠度有限元分析,为解决钢桥面板疲劳问题提供参考。The study points out the reasons for fatigue caused from steel bridge panels,determines that the joints between the roof and the longitudinal stiffener,the transverse diaphragm and the longitudinal stiffener are the most likely parts of the steel bridge panels causing fatigue.Then the study introduces S-N curve fatigue reliability analysis method and its related fatigue limit state equation,and proposes the flow of finite element analysis of fatigue reliability of steel bridge panel using S-N curve method,which can provide reference for solving the fatigue problem of steel bridge panel.

关 键 词：钢桥面板 疲劳可靠度 有限元模拟 

分 类 号：U441.4[建筑科学—桥梁与隧道工程]